Anthony iskb



v UNITED STATES PATENT OFFICE.

' ANTHONY ISKE, OF LAN OASTER, PENNSYLVANIA, ASSIGNOR TO ISRAEL L.

LANDIS, OF SAME PLACE.

DOOR-MAT BELL.

SPECIFICATION forming part of Letters Patent No. 378,962, dated March 6,1888.

Application filed April 22, 1887. Serial No. 235,757. (No model.)

To aZZ whom it may concern.-

Be it known that I, ANTHONY ISKE, a citizen of the United States,residing at Lancaster, in the county of Lancaster and State of 5Pennsylvania, have invented certain new and useful Improvements inDoor-Mat Bells; and

I do hereby declare the following to be a full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to door-mat bells and mechanism for operating thesame when the door-matissteppedon. Thedevices hereinafter shown anddescribedare also, in part, capable of being used for general purposesas an alarm without the door-mat.

It consists in a train of alarm mechanism provided with anactuating-spring and bell, in combination with a cord and pulley,whereby said spring is wound and held under tension, a lever to whichsaid cord is attached, a doormat having a stiff hinged base supported bysaid lever, and a counteracting spring which holds said. lever inposition to maintain such tension, and thus prevent the operation of thealarm until the lever and counteracting spring are forced to yield byexternal pressure.

The said invention also consists in certain additional details ofconstruction and combination, hereinafter more particularly set forthand claimed.

In the accompanying drawings, Figure 1 represents a side elevation ofthe invention, the cover for the alarm mechanism being detached and thewinding-pulley exposed by breaking away the side of the case whichincloses it. The flooring is also broken away to show the pin or studbetween the door-mat and the lever. Fig. 2 represents a detailperspective view of the windingpulleyand part of the cord. Fig. 3represents a detail perspective view of the lever and pin. Fig. 4represents in detail a modified form of lever having two pins or studs.Fig. 5 represents a detail plan view of the hinged door-mat and theslotted plates to which itis attached. Fig. 6 represents a detailpartly-sectional view showing the mainspring,winding-pulley, shaft,pillar, and cord.

A designates a door-mat having a stiff base 50 or lining, from the rearedge of which two upwardly-curving claws, a a, extend backward. Theseclaws enter frombelow the slots 12 of plates 13, which are secured tothe flooring 0. These slots leave the front part of each plate in theform ofa narrow bar, b, which serves as a pivot for the claw a, thatenters the slotb behind it. The mat A is therefore hinged to said platesB by said claws a and bars 12, so

as to be allowed a certain amount of vertical motion. The forward end ofsaid mat rests on a movable pin or stud, D, which works up and downthrough an opening, d, in the flooring. The lower end of this pin isbifurcated to fit over the front part of a stirrup-shaped arm, e, formedon the upper part of a long downwardly-extending lever, E. This lever ishung on side pivots, e, to brackets F,which are attached to the underside of the flooring or, as shown, to a piece, 0, attached thereto. Thestirrup-shaped arm 6 extends forward from above the pivotal line formedby the axis of said gudgeons. Below said pivotal point a longer arm, E,extends to the rear and downward, terminating in a broad fiat disk, 6from the center of which a pin, e rises. A strong spring, G, isinterposed between the said disk 0 and the piece 0 or the flooring Q.The pin 6 helps to keep said spring in place, and the action of thelatter is to rock said lever on its pivots and raise the stud or pin 1)and the front part of the mat. The lower end of lever E is of coursemoved forward by the same motion and draws on a cord, H, which isattached thereto. This cord passes backward over a guide-pulley, I, andup to a winding-pulley, J, within a casing, K, said casing and pulleysand the parts attached to said casing being supported by a wall of thebuilding, as shown, or by any upright stationary device suitable to suchuse. Said cord 9 enters casing K through an opening, 70, and is attachedto the periphery of winding-pulley J after passing around the latter, sothat when the lever E pulls on the cord H the windingpulley J isrotated. This pulley is mounted 5 on and turns with a shaft, L, to whichthe inner end of a coiled spring, M, is attached. The outer end of saidspring is made fast to one of the pillars or, connecting the front andback plates N of a clock-work movement attached roo to easing K. Thisclock-work consists, besides spring M, of a gear-wheel, 0, carried byshaft L, a pinion or lantern wheel, P, with which said wheel 0 meshes,an escapemcntwheel, Q, carried by the shaftp of wheel or pinion P, andthe escapement pallets r r, mounted on a rock-shaft, R. There is nonovcity in this clock-work, and any other suitable to my purpose may besubstituted.

The rock-shaft R carries a hammer, S, which operates against a bell, T.An arm, 8, which is also attached to said rock-shaft, acts as a stop bystriking one of the pillars aforesaid to prevent said hammer from movingtoo far.

The lower end of the lever E is provided with several holes, 0 12 21*,arranged in vertical series. A wire, 71, passed through some one ofthese holes, serves for the attachment of said cord to said lever. Theamount of forward or backward motion of said cord consequent on thevibration of door-mat A and lever E will be varied by shifting the wireh from one hole to another. Thus, when the said wire is in the lowest.hole, 12, a given amonntof depression of the door-mat will cause thecord H to be allowed a greater amount of backward motion than when thewire it is in the hole 0, next above it, and so on.

The spring G, which more than counterbalances the mainspring M of theclockwork, operates to hold the latter spring normally wound and readyfor action and the door-mat A slightly raised. \Vhen the door-mat isdepressed by a persons foot, the said lever is rocked backward,compressing spring G and leaving spring M free to act for a period oftime corresponding to the rearward motion of the cord, which, as beforestated, depends on the hole, 1;, v, or 1;, which may be chosen forattaching said cord or its terminal wire h. A sheet-metal cover, \V, ispreferably employed to give protection to the clock-work and a betterappearance to the entire mechanism.

As shown in Fig. 4, I sometimes employ a lever having two arms, e, andtwo studs or pins, D. This is of course a simple duplication of theformer construction and operates in the same way.

The claws a and slotted plates B allow the mat to be convenientlyremoved when that is desired, although securely hinging it when inposition. It is of course obvious that the form of the lever and theconstruction and arrangement of the spring and pin in contact therewith,as well as some other parts, may be considerably varied withoutdeparting from my invention. The wire h is not at all necessary, beingused merely to give a stronger and more durable attachment of the cordto the lever.

I am aware that it is not new to connect a depressible stud by arms andlevers with the pintle of a furnace-door for the purpose of opening andclosing the latter. I am also aware that it is not new to combinedepressible water-closet seats with movable signalboards andintermediate levers and rods. I am also aware that it is not new tocombine a depressible part of the floor near the seat of a water-closetwith asignal-board and intervening connections, a replacing-spring beingalso used. I do not claim any of these combina tions; but,

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. An alarm mechanism provided with a mainspring and a winding-pulley, acord passed around said pulley and attached thereto at one end, a leverto which the other end of said cord is attached, a door-mat having astiff-hinged base supported by said lever, and a spring operatingagainst said lever to hold said main spring normally under tension,substantially as set forth.

2. A lever having an arm, E, and the holes a v 0 arranged in series, asshown, in combination with alarm mechanism having a winding-pulley and amainspring, a cord passing from one of the holes of said lever to andaround said pulley, and a spring operating against arm E to hold saidmainspring normally under tension, substantially as set forth.

In testimony whereofI affix mysignature in presence of two witnesses.

ANTHONY ISKE.

Vitnesses:

Gno. W. PINKERTON, I. H. Even.

